Prediction of post overload fatigue crack growth life of HSLA steel under mixed-mode (I and II) spike overload by using genetic programming

Abstract

In the present investigation, fatigue crack growth tests under mixed-mode (I and II) overload have been conducted on HSLA steel and subsequently genetic programming has been applied to predict post overload fatigue life. It is observed that the proposed model predicts fatigue life of HSLA steel with reasonable accuracy.